Pulley for boats



FIG. 1 is a front, left, top perspective view of the pulley showing my new design;

FIG. 2 is a back, right, top perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a left side view thereof. 

The ornamental design for a pulley for boats, as shown and described. 